摘要: |
The Integrated Corridor Traffic Management (ICTM) was a field operational test that was launched in 1994 by public-public and public-private partnerships under the Minnesota Intelligent Transportation Systems (ITS) program known as Guidestar. Costing approximately $9 million over the span of 5 years, the test leveraged an effective institutional framework, advanced technologies in adaptive traffic control, ITS field devices, and tailored incident management strategies to optimize traffic operations within an 8-mile section of the I-494 transportation corridor south of the Twin Cities. The corridor encompassed I-494, four parallel arterial streets, and seven perpendicular arterial streets and crossed five jurisdictional boundaries including Minnesota Department of Transportation, Hennepin County, and the cities of Bloomington, Richfield, and Edina. Despite operational challenges with unstable communications network, ICTM proved valuable institutionally, procedurally, and technically. It resulted in a strong partnership that perceived and addressed the corridor transportation issues as an integral operational unit, provided valuable ITS elements and resources, established the first generation adaptive ramp metering control, improved corridor operations and management, and produced significant deployment best practices and lessons learned. This paper summarizes the ICTM evaluation recommendations, conclusions, best practices, and lessons learned based on findings derived from a variety of quantitative and qualitative data sources. |